Smartest Zodiac Sign: 12 Star Signs Ranked

AstrologySmartest Zodiac Sign: 12 Star Signs Ranked

Zodiac signs ranked from dumbest to smartest

Mercury in astrology stands for the mind and intellect. In general, this planet is responsible for intelligence, learning abilities, way of thinking, logic and reasoning, as well as for any kind of intellectual connections and communication between people. Strong Mercury is what the smartest zodiac sign requires.

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The energy of Mercury, depending on the circumstances, can be creative or destructive, but one thing is for sure: it will not let you get bored. Mercury makes your brain think, produce ideas, look for answers.

smartest zodiac sign: 12 star signs ranked

Another area of Mercury’s influence is trade transactions and monetary settlements. The influence of this planet in the natal chart contributes to the preservation of property and the multiplication of wealth.

There is a difference in intelligence between people. Some people are cunning and insidious, others act intuitively; others are smart, but too trusting. What signs of the zodiac skillfully use their intellectual abilities, and who are naive and, therefore, reputed to be dumb?

This article answers the following two questions:

Which zodiac sign is the smartest?

In short, the smartest zodiac sign is Gemini because of their agile mentality and intellectual resourcefulness. Their mind is quick and adaptable making them the most efficient communicators among the 12 zodiac signs. Gemini leaves all other zodiac signs behind as thinkers.

Which zodiac sign is the dumbest?

The dumbest zodiac sign is probably Pisces because Mercury is very weak in this sign. In fact, their mind is too deep to focus on routine issues. In addition, Pisceans are a bit gullible trying to see the best in other people.

In addition, we’ve ranked the zodiac signs from least to most intelligent based on how their Sun sign blends with the energy of Mercury.



(19 February–20 March)

smartest zodiac sign: 12 star signs ranked

Pisces may suffer from the fact that Mercury is in its detriment in their sign. Yes, they live in a world of illusions, they can make a mountain out of a molehill, their imagination is rampant.

Therefore, Pisces is the dumbest zodiac sign—they are too gullible. Lazy Pisces tend to go with the flow, so others do not always manage to recognize their erudition.

Meanwhile, Pisces is emotionally intelligent. They are excellent at understanding other people. They also know when someone is in trouble and offer their help and support. Pisces like to be around a lot of people and discuss different topics even without being the most intelligent zodiac sign.

Pisces are artistic by nature, and they often reflect their emotional nature and vision through art.

Thanks to their resourcefulness, Pisces may still reach career heights despite not being the most intelligent zodiac sign. And they are creative as no other zodiac sign! Don’t forget to add extraordinary luckiness to this weird mix that compensates for their being the least intelligent zodiac sign.

Don’t forget that there are other actors in your Birth Chart that occupy different zodiac signs. Use the link below to create your free birth chart and read its interpretation right now!



(22 November–21 December)

smartest zodiac sign: 12 star signs ranked

Sagittarius is another weak sign for Mercury. Here, Mercury is rather a firestarter, than a lazy dreamer (like Pisces).

The problem is that Sagittarians sometimes fail to think carefully before they act and, therefore, cannot be among the most intelligent zodiac signs. Their plans can seem grandiose at the presentation stage, but the implementation phase may reveal a lot of shortcomings. They like to draw knowledge from books and have a theoretical framework in a particular area, but they are a bit hypocritical. Because of this, those who can read people may even consider Sagittarius one of the dumbest zodiac sign!

Sagittarius has an existential intelligence. This sign can spend a lot of time discussing human existence. Sagittarius is obsessed with the meaning of life and death and often has an interesting and profound point of view.

Jupiter inspires growth, expansion, and risk-taking. That’s why Sagittarius prefers to absorb every experience. Learning and passing on knowledge is their favorite thing to do.

At the same time, Sagittarians are leaders by nature and people tend to believe them whatever they say. Don’t forget that Sagittarius is the luckiest zodiac sign!



(20 April–20 May)

smartest zodiac sign: 12 star signs ranked

Taureans are known for their heavy but steady and practical mind. Taurus men also have bodily kinesthetic intelligence. They know how to control their emotions and body language.

Their intelligence manifests itself when it comes to the material sphere. Then, they turn on their worldly wisdom, carefully think and weigh everything. The mind and body of Taurus are in sync, and they can do whatever they want.

Despite the fact, that many people may consider Taurus one of the dumbest zodiac signs, they can grow excellent careers as actors, soldiers, athletes, dancers, and craftsmen. Taureans have better motor skills than any other sign of the zodiac but they are definitely not the most intelligent zodiac sign. They are not the smartest zodiac sign either.

Of course, there are erudites among Taureans, but they do not boast of their own knowledge in a particular area. They reach career heights very often, but not because of their mind. It is the result of their perseverance or support of influential friends.

This is the description of your Sun sign only! There are other actors in your Birth Chart that occupy different zodiac signs. Do you want to see the whole picture? Create your free birth chart using the link below!



(22 December–19 January)

smartest zodiac sign: 12 star signs ranked

Capricorns, like Virgo, have logical mathematical type of intelligence. They use logic and facts to explain things in life, and believe only in what they can see or feel.

Capricorns are innovators and workaholics. By nature, they are smart, but this quality is used by them only half-heartedly. Most intelligent zodiac sign? Unfortuantely, no.

Researchers from Go Compare have ranked the smartest zodiac signs based on an analysis of Nobel laureates since 1901. What did they come up with? It may seem strange, but Capricorn was at the bottom of the list.

They are successful in their career thanks to their perseverance and love of work. That’s why they don’t need to be the smartest zodiac sign. However, they are not flexible in relationships: they can hardly accept someone else’s point of view. So, their personal life often leaves a great deal to be desired, as well as friendships. But, after all, they are the strongest sign of the zodiac!



(21 June–22 July)

smartest zodiac sign: 12 star signs ranked

Cancer, like Pisces, has a particularly developed emotional intelligence. They are sensitive to the emotions, problems, moods, and reactions of others.

Cancers are great in teamwork because they know how to organize the activities of a group. Their social skills make them great leaders, and because of this, they often build careers as politicians, teachers, and managers. However, they are neither the smartest, nor the most intelligent zodiac sign.

Cancers are very sensitive and focused on their families. However, their minds are not flexible at all. They are slow to make important decisions. They back away and cannot be ranked high among the most intelligent sodiac signs.

They often live in the past—this is how their mind works. However, they are very good at manipulating people, because they are cunning by nature and intuitively feel the psychology of people. They are able to achieve high goals, become leaders, since their mind is hidden under their shell.



(23 July–22 August)

smartest zodiac sign: 12 star signs ranked

Leos understand their intellectual limitations and strengths and know how to use them in different life situations and especially to acquire something they want by pretending the smartest zodiac sign.

Leo has a very strong character and does not give in to any obstacle that stands in their way. Leos are born fighters and always use their mind. They have the courage and power of mind enough to always stand up for their opinion.

Leos are ostentatious erudites. They are superficial and not really focused to become one of the most intelligent zodiac signs. Usually, they know much less than they try to demonstrate to others. But their mind has the energy and drive to impress the world which is their stage. They are natural orators.

Leos are able to achieve their goals using their charisma and the right people. The “king of beasts” does not need to know all the details or be the smartest zodiac sign.



(23 September–22 October)

smartest zodiac sign: 12 star signs ranked

This air sign has a lot of gray matter in the brain and does a great job with logical abilities. Libra is one of the 6 most intelligent and smartest zodiac signs.

Libras gently demonstrate their wisdom or knowledge when they are confident in their answers.

Libras do not like to argue, so they often refrain from expressing their opinions however smart they may be. People of this sign love to discover new facts and get a higher education.

Libra vibrations blend well with the energy of Mercury. Libra is smart, intellectually refined, but modest by nature.

Whenever there is a problem, everyone comes to Libra because they have solutions. They are great at balancing the situation and choosing the best option.

Their erudition is not flaunted. Having a great potential, they often do not know how to use it, and Libra poets usually remain unappreciated. Libra’s indecisiveness and trustfulness hinders them and allows others to manipulate or use them.

This is the description of your Sun sign only! There are other actors in your Birth Chart that occupy different zodiac signs. Use the link below to create your free birth chart and read its interpretation right now!



(21 March–19 April)

smartest zodiac sign: 12 star signs ranked

Aries use their body language to express themselves. However, sometimes they should think before they act to avoid uncomfortable situations. In some situations, Aries may seem one of the dumbest zodiac signs but this is not true.

They know how to balance their strength, agility and flexibility. They are independent and know how to get what they want using their intellect.

Aries are smart enough, but too naive to be the most intelligent zodiac sign. Sometimes, they allow themselves to be manipulated. Representatives of the fire zodiac sign are very impulsive and quick-tempered.

Aries express their thoughts accurately and deeply, and can benefit from situations in which another person would have given up long ago. However, there are few really brilliant intellectuals among the representatives of this sign. Their mind is a bit coarse.



(23 October–21 November)

smartest zodiac sign: 12 star signs ranked

This is the first zodiac sign in the premier league of intellectuals in the world of astrology. Scorpio is one of the most intelligent and smartest zodiac signs.

Scorpios set goals for themselves and do everything in their power to achieve them using their intellectual abilities. These people are smart, shrewd, able to ask the right questions and always be informed and ready for what’s to come.

Scorpios are smart, with a well-developed intuition. They are good at reading people, especially those born under the dumbest zodiac signs. Using their strong intuition, Scorpios can anticipate events before they even begin. Clever plans are their fortress, especially if it’s a matter of honor or revenge.

Sometimes, they pretend to be simpletons and prefer not to demonstrate their intelligence. Scorpios make good teachers, but they can become anything.

They are curious, involved in projects and know how to solve any problem that may come their way.

Scorpios have visual spatial intelligence, the ability to think in three dimensions which is the trait of one of the most intelligent zodiac signs.



(23 August–22 September)

smartest zodiac sign: 12 star signs ranked

Meticulous and petty, Virgos think out everything very carefully. Virgos are attentive to detail, serious, and meticulous. They are organized and disciplined and rarely fail. Aren’t these the qualities of the most intelligent and smartest zodiac sign?

Virgos can learn all their lives. So, they often go on about the mind, not the heart. Virgos have a cold mind and discerning intellect.

They are attracted to calculations and solving mysteries. Numbers are their strength, and they use their logical and computational skills to solve complex problems. Some of the smartest scientists and mathematicians were born under this zodiac sign.

They calculate everything: from the probability of success in any business to the probability of finding a suitable partner to start a family.

Virgo are good at intellectual research. They keep information in their neatly organized database.

Remember that there are other planets in your Birth Chart that occupy different zodiac signs. Use the link below to create your free birth chart and read its interpretation right now!



(20 January–18 February)

smartest zodiac sign: 12 star signs ranked

Ruled by rebellious Uranus, the planet of revolution, technology and innovation, Aquarius is able to understand things that others have not even thought of. Aquarians see details that the dumbest zodiac signs miss.

Aquarians also understand both points of view in a particular situation. This makes them the most tolerant, non-discriminatory and kind zodiac sign that stands out from the dumbest zodiac signs.

Aquarians are good listeners—this is another quality of the smartest zodiac sign. They are willing to listen to others because they know there is always something to learn. Aquarius also has a strong memory.

Aquarians have a developed naturalistic intelligence. They know a lot about flora and fauna and are in touch with nature.

Aquarians are called the engines of progress thanks to their ruler Uranus, the planet of genius. Their way of thinking is different from the standard. They are creative and original in everything and take the well-deserved 2nd position in our ranking of the most intelligent zodiac signs.

They do not always find understanding among others. Let them often go against the crowd: they are aimed at high achievements in their chosen path. They are not always successful in their personal life, since they spend too much time on their hobbies. Many scientists and inventors, writers and artists were born under the sign of Aquarius.



(21 May–20 June)

smartest zodiac sign: 12 star signs ranked

From their early age, Geminis impress others with their wit and ingenuity. Yes, they can be experts in various fields, because they are extremely inquisitive. Gemini excel in analysis, have outstanding oratorical skills.

They have a quick answer for everything and will surprise you with the wittiest comments. The Gemini’s mind never rests—they constantly analyze any information. In academia, Gemini tends to outshine and excel others.

They have several talents, since the sign is dual. However, no matter what area of personal growth Geminis choose, they grasp all the nuances and achieve extraordinary results. They are enterprising and resourceful. Their bright intellect is their gift that compensates for some lack of focus which is the backside of their incredible mental abilities.

They love to share facts and get excited when they discover something new. Gemini can easily communicate with anyone.

If you are looking for someone to brainstorm, choose Gemini. They are a creative, original and intelligent sign.

Gemini is the smartest zodiac sign—this statement is confirmed by the fact that Gemini can boast of having the greatest number of Nobel Laureates as compared to other most intelligent zodiac signs. Therefore, Gemini is the most intelligent zodiac sign.

Geminis love their gadgets. To use them safely, they need the PhoneSoap Smartphone Sanitizer. Mathematical Glasses will comply with their intellectual nature. Geminis should also use the Mercury Retrograde Protection Candle to neutralize the temporary negative impact of their ruling planet.

Don’t limit your astrology experience by your Sun sign only! See the whole picture: create your free Birth Chart and read its in-depth interpretation (the form appears in a new tab).

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  1. Usually I do not read article on blogs, but I would like to say that this write-up very forced me to try and do so! Your writing style has been surprised me. Thanks, very nice article.

  2. I think libra and aries should switch places because libra is an air sign. Part of what the element air represents is logical thinking while the element of fire represents assertiveness and leadership. That’s not to say that aries aren’t smart. My dad is an Aries and is incredibly intelligent with a way above average IQ. They’re one of my top favorite signs. But while libra is not the smartest sign, they’re smarter than given credit for. So I do believe that they should be at least number 5 on the list. But that’s just my opinion. Ya’ll are free to disagree.

    • Actually I believe that we should be number 5 at the most. We’re not the smartest sign so we shouldn’t be higher than 5. I still really like this article though and enjoyed reading it.

  3. Hi! I’m back and I was wondering if you could please answer this for me. I’m a libra sun cancer moon but I also have sun in the 11th house which would be Aquarius and moon in the eight house which would be Scorpio. (I know you know which signs go with which houses. I was just saying it for the people who read my comment who might not know) But I was wondering if having sun in the 11th house and moon in the eighth could affect my intelligence positively because they’re super smart signs, or if it doesn’t have an effect on my intelligence at all? If you have the time, I’d love to know but I completely understand if you’re too busy. Thanks!

    • Hi Red! Thank you for your comment. To answer your question, I need to know where your Mercury is placed. If your Mercury interacts with your Sun and Moon by means of some aspects, these placements certainly improve your intelligence, although the Moon in Cancer may add an emotional streak to your mentality (doubled by the placement in the Scoprio’s water house). If these planets do not aspect your Mercury, they will affect your intelligence indirectly by means of opportunities. Planets in signs mean personal qualities. House position means events (opportunities or their absence).

      • So I have Mercury in Libra and the degrees are 18, 24, and 24. This may be miscellaneous to my question but I was also was born in the third decan, have Uranus in Aquarius and have Aquarius in the third house. I thought moon in the 8th house would actually help my intellect cause in this list, Scorpio is one of the smartest signs and also considered one of the smartest by many astrologers. The cancer in me does make me emotional but I have a lot of air in my chart so I think that balances it out most of the time.

      • Hmmm. I thought I responded but I don’t see the message. This seems to be an ongoing problem with my computer so I’m going to try again. the planetary aspects for my mercury sign are 18° 24′ 24.” I have Mercury in libra and in the 10th house. I don’t know if this makes a difference in regards to my question but I also have Uranus in Aquarius, the third house in Aquarius and I was born in the third decan although I know there have been debates about whether the decan your born in really matters.

        • Hi, Red! You can’t see your messages just after you’ve posted them because comments are moderated… It’s not an issue with your computer. This is normal. It’s not wise for webmasters to publish all the comments because of spam. 🙂

        • Your question was: if having the Sun in the 11th house and the Moon in the eighth could affect my intelligence positively. But which house system do you use?
          I use the whole sign house system. You can either let me know your rising sign or the house system you use. Actually, I’ve already analyzed your placements but I need to make sure about the basics (house system) before I publish my response.

          • My rising sign is Sagittarius. I think Sagittarians get a bad rep for being unintelligent because they’re so impulsive but the planet they’re ruled by symbolized growth and expansion including that of in the mind.

        • Hi, Red! The information you’ve provided is not enough to calculate all aspect orbs, but I can make conclusions based on aspects by sign. I mean all air signs make trines to other air signs, all water signs make sextiles to earth signs, etc. It’s not a simplification. It makes sense, really, based on my experience. Exact orbs make aspects stronger, but we should never miss aspects by sign. Planets in the same sign are always in “broad” conjunction. They’re probably not in the same “room” but they are in the same “house.”
          Bearing this in mind, your Sun is in the eleventh house with your Mercury which we will regard as their conjunction. This is great, because Mercury strengthens your Sun which is, unfortunately, weak in the house of Aquarius (doubled by its weak position in Libra). However, even these weaknesses intellectualize your birth chart—everything that interacts with your Mercury affects your intelligence. Your Libra Sun in the house of Aquarius may lack certain practical qualities (issues when trying to implement your ideas), but, in the context your question, it is positive.
          Hopefully, you Mercury is not retrograde. But even if it is retrograde, it just means that your intelligence is deeper than normal (however, less practical, if retrograde).
          I don’t believe that you Cancer Moon in the Scorpio’s house (8th) can positively affect your intelligence. I would say, the Moon is the “bad guy” in your configuration. It squares your Sun and Mercury in the 11th house and distorts your intellectual ability rather than strengthens it. What does it mean? You may be biased in your conclusions until you learn how to fine tune your intellectual processes. Of course, it depends on how old you are. Perhaps, you’ve already fixed this problem (if you’re a mature person). But this placement may mean family patterns that limit your ability to make good decisions.
          (Note that I do not represent the so-called “optimistic” astrology, when any planet placement is always regarded as a potential rather than something you have to deal with seriously. In my opinion, astrology should be sometimes very straight, because people normally follow the line of least resistance (evolution does the same) and do not use their astrological potential, mostly its windfalls. If a planet placement is bad in someone’s horoscope, they can improve it, but most often they don’t. Sorry.)
          At the same time, you have an excellent “broad” trine of your Uranus in Aquarius to your Mercury/Sun in Libra. In addition, your perfect Uranus is in your third house of intellect (Gemini’s house). No doubt, this boosts your intellectual potential.
          Look at your Jupiter position (your rising sign ruler). If your Jupiter is in an air or fire sign (except for Aries), it improves your intelligence. In Aries, Jupiter will be opposite to your Sun/Mercury, which is a challenging aspect but still affecting your intellectual processes. Otherwise, Jupiter only affects your appearance and does not affect your intelligence.
          Summing it up, your intelligence and intellectual potential is much higher than average. Even the challenging aspects in your birth chart are workable in your situation. I mentioned family patterns that may limit your intelligence—most people overcome them gradually. But your family patterns are not necessarily negative (your Moon is in Cancer), but, in some way, they may limit your intellectual progress (Moon in the Scorpio’s sign square to your Sun and Mercury).
          Actually, each person’s birth chart is an endless story about a unique soul. But we need to stop somewhere. ?

          • Thank you so much for the thought out response! Something I’ve noticed within myself is that I swing between rational and irrational thoughts. Being that my chart is equally dominated by air and water, I can either be very logical or overly emotional depending on the situation. I agree that I’m not always the most practical. I have lots of outside of the box ideas but I don’t always know how to put them into action. But I absolutely love to learn and study and I do it for fun in my free time. I’ll be a senior this year and my GPA is currently a 3.711 which is above average. I used to be very biased but through becoming more mature, I’ve learned that there’s always a part of the story that you don’t know and to never look at everything in a black and white manner. My family doesn’t really limit my intellectual process because they have always taught me to think for myself and pushed me to excell academically. I really appreciate you taking the time to do this for free because I know looking into someone’s birth chart is hard work and can be very time consuming. Thanks again!

          • Red, you’re welcome!
            Please note that I didn’t say that any of your family members specifically “limit(ed) your intellectual process.” I meant “family patterns that (may) limit your ability to make good decisions”. These things are a bit different. Your statement is very specific, and it is not what I wanted to say. The example situation that I suggested was the best formula I could come up with bearing in mind that I didn’t know your birth data, and my assumptions were based merely on your selective planet placements reported by you.

          • Don’t worry! I knew what you meant. Sorry for the miscommunication in what I said. Thank you though!

  4. I’m a sag and I’m in high school, I’ve never gotten a b in my life only “A” s
    Us sags are smart and super hard working I feel like we get a bad rep


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